 By the end of the century London had definitely established two councils, that of the mayor and aldermen, representing the old borough court, and a common council, representing the voice of the commonalty, as expressed through the city wards.The choice of councillors in the wards rested probably with the aldermen and the ward jury summoned by them to make the presentments.In some cases juries were summoned not to represent different areas but different classes; thus at Lincoln there were in 1272 juries of the rich, the middling and the poor, chosen presumably by authority from groups divided by means of the tax roll.